Automatic cutting equipment for steel structure handrail
By combining the clamping and cutting structure with the programmable logic controller, the problems of unstable clamping and poor cutting accuracy in the railing cutting device are solved, achieving stable clamping and automated cutting of the railing, improving cutting accuracy and protecting worker safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-15
- Publication Date
- 2026-03-24
AI Technical Summary
Existing railing cutting devices cannot automate the cutting process, the clamping is not secure, resulting in poor cutting accuracy, and the cutting debris poses a safety hazard to workers.
The device employs a clamping and cutting structure, including a telescopic drive box, a moving frame, a cylinder, a support plate, and V-shaped fixing holes. The cylinder drives the clamping plate to press down against the rubber strip fixing railing, and a programmable logic controller is used to achieve precise clamping and cutting.
It achieves stable clamping of the railing, improves cutting accuracy, avoids the harm of cutting debris to workers, and realizes automated cutting.
Smart Images

Figure CN224026592U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of railing processing technology, specifically to an automated cutting device for steel structure railings. Background Technology
[0002] Steel structure railings are safety protection facilities used in staircases, platforms, walkways, and other similar locations. Their main function is to protect people from falls from heights, while also providing additional support and stability. Railings are typically connected by welding. They can be prefabricated in sections at the factory and then installed on-site, depending on transportation and installation conditions, or they can be fabricated and installed on-site.
[0003] CN218836307U discloses a cutting device for railing processing, belonging to the field of railing processing technology. This cutting device includes a main body; a frame fixedly connected to the upper end of the main body; and a cutting mechanism housed within the frame via a lifting mechanism. The cutting mechanism includes a first motor and a cutting wheel. The first motor is connected to the lifting mechanism. A PLC control terminal in this device controls the operation of the conveying mechanism, lifting mechanism, and cutting mechanism. After the railing material is clamped by the clamping mechanism, the conveying mechanism transports it to the lower side of the cutting mechanism. The lifting mechanism controls the cutting mechanism to contact the railing material, and the cutting mechanism performs seven cuts on the railing material. The process is automated. During cutting, the worker remotely controls the operation of the PLC control terminal. The debris generated during cutting will not harm the worker, protecting the worker's safety.
[0004] The aforementioned patent addresses the shortcomings of existing cutting devices, such as the inability to automate the cutting process and the potential danger of debris to workers cutting railings. However, this technical solution only uses two flat clamping plates to hold the railing, while railings are generally circular, and there is only one fixed point between the two clamping plates and the railing. This results in poor clamping stability, making the railing prone to displacement when cut by the blade during the cutting process, affecting the cutting accuracy. Therefore, an automated steel structure railing cutting device is proposed to solve the above problems. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides an automated cutting device for steel structure railings, which has the advantage of good cutting effect and solves the problem that the existing cutting devices have poor fixing effect on the railings, which easily affects the cutting accuracy.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an automated cutting device for steel structure railings, including a drive box, wherein the drive box is provided with a clamping and cutting structure;
[0007] The clamping and cutting structure includes a telescopic drive box slidably installed inside the drive box. A partition is fixedly installed inside the telescopic drive box. An electric telescopic rod is fixedly installed on the opposite side surface of the partition. A movable frame is fixedly installed at the end of the electric telescopic rod away from the partition, penetrating the telescopic drive box and extending outside the drive box. A cylinder and two support plates are fixedly installed on the upper surface of the movable frame. A first V-shaped fixing hole is opened on the surface of the support plate. A pressing clamping plate is fixedly installed on the top of the cylinder. A second V-shaped fixing hole is opened on the surface of the pressing clamping plate. Rubber strips are fixedly installed inside both the first and second V-shaped fixing holes. A drive assembly is provided between the drive box and the telescopic drive box. A mounting plate is fixedly installed on the surface of the drive box. A fixing plate is fixedly installed on the lower surface of the mounting plate. A cutting motor is fixedly installed on the surface of the fixing plate. The output shaft of the cutting motor passes through the fixing plate and is fixedly installed with a cutting blade.
[0008] Furthermore, the pointed end of the first V-shaped fixing hole faces the surface of the movable frame, while the pointed end of the second V-shaped fixing hole is away from the surface of the movable frame.
[0009] Furthermore, there are multiple rubber strips, which are evenly distributed inside the first V-shaped fixing hole and the second V-shaped fixing hole.
[0010] Furthermore, the cylinder and the pressing clamping plate are located between the opposite surfaces of the two support plates, and the surface of the pressing clamping plate is in sliding contact with the surface of the support plate.
[0011] Furthermore, the drive assembly includes two connecting blocks fixedly installed on the lower surface of the telescopic drive box. The surface of the connecting block is provided with threaded holes. Two drive motors are fixedly installed inside the drive box. The output shaft of the drive motor is fixedly installed with a threaded rod. The threaded rod passes through the threaded hole and is threadedly connected to the threaded hole.
[0012] Furthermore, a strip-shaped hole communicating with the interior of the drive box is provided on the opposite side surface of the drive box, and the moving frame is located inside the strip-shaped hole.
[0013] Furthermore, the mobile frame has a C-shaped cross-section, with one side of the mobile frame located inside the telescopic drive box, and the side of the mobile frame away from the telescopic drive box extending to the upper surface of the drive box.
[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:
[0015] This automated steel railing cutting equipment features a telescopic and movable frame on its drive box, a cylinder and a support plate on the movable frame, a downward clamping plate on the cylinder, a first V-shaped fixing hole on the support plate, and a second V-shaped fixing hole on the downward clamping plate. In use, the railing is passed through the first and second V-shaped fixing holes in sequence. The cylinder then moves the downward clamping plate downwards, causing the first and second V-shaped fixing holes to engage and fix the railing. Attached Figure Description
[0016] Fig. 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Fig. 2 This is a schematic diagram of the fixing plate structure of this utility model;
[0018] Fig. 3 This is a cross-sectional structural diagram of the drive box and telescopic drive box of this utility model;
[0019] Fig. 4 This is a schematic diagram of the drive motor structure of this utility model;
[0020] Fig. 5 This is a schematic diagram of the second V-shaped fixing hole structure of this utility model;
[0021] Fig. 6 This is a schematic diagram of the first V-shaped fixing hole structure of this utility model.
[0022] In the diagram: 1. Drive box; 2. Telescopic drive box; 3. Partition; 4. Electric telescopic rod; 5. Moving frame; 6. Cylinder; 7. Support plate; 8. First V-shaped fixing hole; 9. Downward clamping plate; 10. Second V-shaped fixing hole; 11. Rubber strip; 12. Mounting plate; 13. Fixing plate; 14. Cutting motor; 15. Cutting blade; 16. Connecting block; 17. Threaded hole; 18. Drive motor; 19. Threaded rod; 20. Strip hole. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Please see Figs. 1 to 6An automated steel structure railing cutting device in this embodiment includes a drive box 1. The drive box 1 is equipped with a clamping and cutting structure, which includes a telescopic drive box 2 slidably installed inside the drive box 1. A partition 3 is fixedly installed inside the telescopic drive box 2. An electric telescopic rod 4 is fixedly installed on the opposite side of the partition 3. A movable frame 5 is fixedly installed at the end of the electric telescopic rod 4 away from the partition 3, penetrating the telescopic drive box 2 and extending outside the drive box 1. A cylinder 6 and two support plates 7 are fixedly installed on the upper surface of the movable frame 5. A first V-shaped fixing hole 8 is opened on the surface of the support plate 7. A pressing clamping plate 9 is fixedly installed on the top of the cylinder 6. A second V-shaped fixing hole 10 is opened on the surface of the pressing clamping plate 9. A rubber strip 11 is fixedly installed inside both the first V-shaped fixing hole 8 and the second V-shaped fixing hole 10.
[0025] The sharp end of the first V-shaped fixing hole 8 faces the surface of the movable frame 5, and the sharp end of the second V-shaped fixing hole 10 is away from the surface of the movable frame 5. There are multiple rubber strips 11, which are evenly distributed inside the first V-shaped fixing hole 8 and the second V-shaped fixing hole 10.
[0026] It should be noted that the cylinder 6 and the pressing clamping plate 9 are located between the opposite surfaces of the two support plates 7, and the surface of the pressing clamping plate 9 is in sliding contact with the surface of the support plate 7.
[0027] A mounting plate 12 is fixedly mounted on the surface of the drive box 1. A fixing plate 13 is fixedly mounted on the lower surface of the mounting plate 12. A cutting motor 14 is fixedly mounted on the surface of the fixing plate 13. The output shaft of the cutting motor 14 passes through the fixing plate 13 and a cutting blade 15 is fixedly mounted thereon.
[0028] A drive assembly is provided between the drive box 1 and the telescopic drive box 2. The drive assembly includes two connecting blocks 16 fixedly installed on the lower surface of the telescopic drive box 2. The surface of the connecting block 16 is provided with threaded holes 17. Two drive motors 18 are fixedly installed inside the drive box 1. The output shaft of the drive motor 18 is fixedly installed with a threaded rod 19. The threaded rod 19 passes through the threaded hole 17 and is threadedly connected to the threaded hole 17. By setting up the drive assembly, it is convenient to drive the telescopic drive box 2 and the moving frame 5 to move on the surface of the drive box 1.
[0029] It should be noted that a strip-shaped hole 20 communicating with the interior of the drive box 1 is provided on the opposite side surface of the drive box 1. The movable frame 5 is located inside the strip-shaped hole 20. The cross-sectional shape of the movable frame 5 is C-shaped. One side of the movable frame 5 is located inside the telescopic drive box 2, and the side of the movable frame 5 away from the telescopic drive box 2 extends to the upper surface of the drive box 1.
[0030] It should be noted that in this embodiment, the two cylinders 6 and the electric telescopic rod 4 are precisely controlled by a programmable logic controller, and the synchronous movement of the two cylinders 6 and the electric telescopic rod 4 is achieved through programming.
[0031] It should be noted that in this embodiment, the electric telescopic rod 4 is connected to the power supply via a spring wire to ensure that the electric telescopic rod 4 maintains a stable connection with the power supply while moving, thereby achieving a stable power supply to the electric telescopic rod 4.
[0032] The working principle of the above embodiments is as follows:
[0033] In use, the railing is passed through two pressing clamping plates 9 and four supporting plates 7 in sequence, so that the railing is located in the first V-shaped fixing hole 8 and the second V-shaped fixing hole 10. The pressing clamping plate 9 is moved downward by the cylinder 6, so that the railing is stuck at the bottom inside the first V-shaped fixing hole 8, and the top inside the second V-shaped fixing hole 10 contacts the railing. The railing is fixed with the cooperation of the rubber strip 11. The distance between the two moving frames 5 can be adjusted by the electric telescopic rod 4, so that railings of different lengths can be fixed. The telescopic drive box 2 moves inside the drive box 1 by the drive motor 18 driving the threaded rod 19 to rotate. The cutting blade 15 is rotated by the cutting motor 14. When the railing passes through the cutting blade 15, the railing is cut.
[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An automated cutting device for steel structure railings, comprising a drive box (1), characterized in that: The drive box (1) is equipped with a clamping and cutting structure; The clamping and cutting structure includes a telescopic drive box (2) slidably installed inside the drive box (1). A partition (3) is fixedly installed inside the telescopic drive box (2). An electric telescopic rod (4) is fixedly installed on the opposite side surface of the partition (3). A movable frame (5) is fixedly installed at the end of the electric telescopic rod (4) away from the partition (3), penetrating the telescopic drive box (2) and extending to the outside of the drive box (1). A cylinder (6) and two support plates (7) are fixedly installed on the upper surface of the movable frame (5). A first V-shaped fixing hole (8) is opened on the surface of the support plate (7). A lower cylinder (6) is fixedly installed on the top of the cylinder (6). A pressure clamping plate (9) is provided, and a second V-shaped fixing hole (10) is provided on the surface of the pressure clamping plate (9). A rubber strip (11) is fixedly installed inside both the first V-shaped fixing hole (8) and the second V-shaped fixing hole (10). A driving assembly is provided between the driving box (1) and the telescopic driving box (2). An mounting plate (12) is fixedly installed on the surface of the driving box (1). A fixing plate (13) is fixedly installed on the lower surface of the mounting plate (12). A cutting motor (14) is fixedly installed on the surface of the fixing plate (13). The output shaft of the cutting motor (14) passes through the fixing plate (13) and a cutting blade (15) is fixedly installed thereon.
2. The automated cutting equipment for steel structure railings according to claim 1, characterized in that: The sharp end of the first V-shaped fixing hole (8) faces the surface of the movable frame (5), and the sharp end of the second V-shaped fixing hole (10) is away from the surface of the movable frame (5).
3. The automated cutting equipment for steel structure railings according to claim 1, characterized in that: The number of rubber strips (11) is multiple, and the multiple rubber strips (11) are evenly distributed inside the first V-shaped fixing hole (8) and the second V-shaped fixing hole (10).
4. The automated cutting equipment for steel structure railings according to claim 1, characterized in that: The cylinder (6) and the pressing clamping plate (9) are located between the opposite surfaces of the two support plates (7), and the surface of the pressing clamping plate (9) is in sliding contact with the surface of the support plate (7).
5. The automated cutting equipment for steel structure railings according to claim 1, characterized in that: The drive assembly includes two connecting blocks (16) fixedly installed on the lower surface of the telescopic drive box (2). The connecting blocks (16) have threaded holes (17) on their surfaces. The drive box (1) has two drive motors (18) fixedly installed inside. The output shaft of the drive motor (18) has a threaded rod (19) fixedly installed on it. The threaded rod (19) passes through the threaded hole (17) and is threadedly connected to the threaded hole (17).
6. The automated cutting equipment for steel structure railings according to claim 1, characterized in that: The drive box (1) has a strip hole (20) on its opposite side surface that communicates with the inside of the drive box (1), and the moving frame (5) is located inside the strip hole (20).
7. The automated cutting equipment for steel structure railings according to claim 1, characterized in that: The mobile frame (5) has a C-shaped cross-section. One side of the mobile frame (5) is located inside the telescopic drive box (2), and the side of the mobile frame (5) away from the telescopic drive box (2) extends to the upper surface of the drive box (1).